What does it mean for a county commissioner to serve "ex officio" on the consolidated human services board?

All CHS boards are required to have at least one member who is a county commissioner. A county commissioner serves ex officio on the CHS board if the commissioner is appointed to the CHS board by virtue of this individual’s office as a county commissioner. A county commissioner who serves ex officio on the CHS board has the right and obligation to participate fully in all of the board's deliberations and to vote with respect to all of the board's decisions. However, a county commissioner who serves ex officio on the county social services board is not subject to the same term limits and multiple office holding restrictions as other CHS board members. The county commissioner member may serve on the CHS board only as long as the member is a county commissioner.